Copper Eliminator cleaning rods, brushes, jags, and adapters from J. Dewey Manufacturing have machined aluminum components that won’t react with ammonia-bases solvents like brass parts will. They eliminate “false positive” blue-green copper stains on your patches, so you’ll know when your bore really is copper free. Similar in hardness to brass, Copper Eliminator parts won’t scratch the bore or damage the muzzle, while resisting war, so they stand up to hard use.
Copper Eliminator Rods
Top-quality rods with the same tough outer coating and ball-bearing smooth rotating handle as standard Dewey rods, with a difference. These rods have an 8-32 female threaded aluminum ferrule that won’t react with ammonia-based solvents. Each rod is supplied with an aluminum Copper Eliminator jag.
Sinclair, Issue:5B, Page:132